171507-76-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171507-76-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,5,0 and 7 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 171507-76:
(8*1)+(7*7)+(6*1)+(5*5)+(4*0)+(3*7)+(2*7)+(1*6)=129
129 % 10 = 9
So 171507-76-9 is a valid CAS Registry Number.